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Screw devices used to treat fractures of the femoral neck are usually positioned under image-intensifier control, using anteroposterior and lateral views. The volume projected by these views is over 27% larger than the femoral head; the tips of screws so placed may be outside the femoral head. This can be avoided by placement within the central two-thirds of the head: we have designed a template which can confirm safe placement.

Type

Journal article

Journal

J Bone Joint Surg Br

Publication Date

05/1993

Volume

75

Pages

448 - 449

Keywords

Anthropometry, Bone Screws, Femoral Neck Fractures, Fracture Fixation, Internal, Humans, Image Enhancement, Mathematics, Radiography, Retrospective Studies